Rotary



N0. 6|0,700. Patented Sept. I3, |898.

. B. BENSON.

ROTARY ENGINE.

(Apphcatmn led Oct 27, 1897.)

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No. GIJOU.. Patented Sept. I3, |8918. C. B. BENSON. ROTARY ENGINE.

(Application `ledavct.. 27, 1897.)

4 Sheets-Sheet 2.

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C. B. BENSON. ROTARY ENGINE.

(Application led Oct. 27, 1897.) v

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No. 610,700. Patented sept. |3 |890. c. Benson.

aorAnY ENGINE.

(Appncmon med out. 27, 1897.)

(N0 Model.) 4 Sheets-Sheet 4.

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CHARLES n.` nuNsoN, or (nner-ico, ILLINOIS.

AROTARY;sacarle..-

SPECIFICATION forming part of Letters Patent No. 610,700, dated September 13, 1898.

Appnmion flied maar 27,1897?. saturo. 656,506( (No mais.)

To all whom t may concern:

Be it known that I, CHARLES BBENSON, a citizen of the United States, residing at `Chicago, in the county of Cook and State ofIlli.- nois, have invented certain new and useful Improvements in Rotary Engines and'I do hereby declare the following to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of my specification.

The object of my invention is to provide a new and improved rotary, engine or motor which is simple in construction, efficient in operation, and arranged to permit the reversing of the engine or motor and to' utilize the motor agent without the loss usually attending structures of this character.

By my construction a uniform, continuous, and effective motor agent is furnishedwhich acts upon the whole area of the piston throughout its entire revolution and without any diminution of power, thereby entirely avoiding the dead-center of other constructions, which in all machinery entails the use of heavy fly -wheels or equivalent devices to store up power to enable the operative parts to pass the dead-center line.

The invention consists of certain parts and details of construction, which will be fully hereinafter described, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a partof this specification,"

in which similar numerals of reference indicate corresponding parts in all the views.

Figure 1 is a perspective view of Kmy engine. Fig. 2 is a sectional view taken on line 4 4, Fig. 4. Fig. 3 is a like view on line 5 5,

Fig. 5. Fig. 4 is a sectiony on line 4 4, Fig. 2. Fig. 5 is a section on line 5 5, Fig. 2, the piston being in a raised position. Fig. 6 is a view of the steam-chest and valve on line G 6, 5. Fig. 7 is a perspective of the hub, piston, and ring detached.

1 indicates the base of my rotary engine, and 2 the cylindrical casing of the same.

3 and 4 indicate the cylinder heads or caps, being attached to the casing by headed screws or in any other suitable way. Each of the or caps 3 and`4. v Each end of the ring is provided with a groovelto receive a steam-tight packing 10, as seenl` in Fig. 7, in order to prevent anyleakage of the motor agent. This packing may be composed of fibrous material or graphite and any of wthe Well-known in gredientsV forming a composition therewith or any other suitable material. All that is required is that this packing and all the packing used in my motor shall insure a steam tight joint.

Journaled Within the ring l) is a shaft 11, carrying a hub 12, which is provided with a pistonl, the shaft being concentric with the cylinder 2. I prefer to make the hub, shaft, and piston integral, though, if desired, they may loe` in separate parts and may be united in any well-known and suitable manner. Deep-cut circular grooves or chambers 14 Vand 15 are formed in one end of the hubthat one adjacent to the 'steam-chest 6, with which the passages? and'S in the steam-chest communicate, as has been stated. The piston 13 is provided with grooves 22 on each side, respectively, of its face, which register with passage-ways 18 and 19 of the hub 12, as shown in Fig. 7. 2l in its periphery, in which the piston reciprocates when the engine is in operation. The ring and the hub carrying the piston revolve at the same time, but the ring is eccentric and the hub concentric to the casing.

It will be observed that both theriug and the piston Work in close Contact with the inner periphery of the casing. If found desirable, the outer end of the piston may be provided with a suitable packing, and also the interior of the casing at the point where the ring contacts with the same. Steam from any source is admitted to the steam-chest through the The ring S has a longitudinal slot I IOO pipe 25,while the exhaust takes place through the pipe 24, as shown in Fig. 1.

While in the description of my motor or engine I have generally referred to the use of steam as the motor agent, it is obvious that compressed air or gas or any other fluid or motor agent may be employed. Also it is understood that I do not limit myself to specific details of construction as set forth in the foregoing description, but claim the privilege of making such modifications and arrangements of parts as will fall within the scope and spirit of my invention.

The operation of my engine is as follows: Steam or other motor agent being admitted to the steam-chest passes through port Sinto the groove or chamber l5 of the hub and thence through port 18 into chamber 20, Where it' will act on the whole area of the piston which lies in chamber 20, as seen in Figs. 2 and 7. As the hub revolves to the right the piston will increasingly protrude through the slot 2l, (see Fig. 3,) being partly in chamber 2O and partly in chamber 20a. In this figure the piston is shown as having made a quarter-revolution. When a half-revolution is attained, the piston will be entirely in chamthe piston at all times, for the communication` between the chambers 20 and 20 is always open. It will also be seen that when the piston passes what would in other constructions be the dead-center, Fig. 2, the exhaust will take place through groove 22, port 19, groove or chamber 14, port 7, and out through pipe 25. To reverse the motion of the engine, it is only necessary to pull the valve to the right, (see Fig. 6,) thereby covering port 8 and opening port 7.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a rotary-motor7 the combination of a casing, a rotatable ring in the casing, a hub rotatable in the ring and having deep-cut circular grooves in one end forming fluid-chambers, and ports connecting with the chainbers located in the hub, all arranged as set forth.

2. In a rotary engine, the combination of a casing, a rotatable ring in the casing, a hub rotatable in the ring and having deep-cut concentric grooves in one end forming fluidchambers and a piston having ports connecting respectively with said chambers, all arranged as set forth.

3. In a rotary motor, the combination with a casing of a rotatable ring in the casing, a hub rotatable in the ring and having circular grooves forming fluid-chambers in one end, and a piston having a port in each outer side thereof connecting respectively with each chamber, all arranged as set forth.

4. In a rotary motor, the combination of a casing, a rotatablering in the casing, a hub rotatable in the ring and having concentric grooves in one end forming fluid-chambers,

and a piston connected with the hub and having a port in each outer side registering respectively with the concentric chambers, as set forth.

5. In rotary motors, the combination of a casing, an eccentric rotatable hub solid at one end and having concentric grooves forming fluid-chambers in the other end, said hub having a pis ton with a port in each side thereof, one port communicating with the inner chamber and the other port with the outer chamberof the hub, all arranged as set forth.

6. In rotary motors, the combination of a casing having ends provided with circular grooves, a ring rotatable in the casing and having ends fitting said grooves, an eccentric rotatable hub within said ring having circular fluid-chambers in one end, a piston having a port on each side connecting respectively with each chamber, an exhaust and inlet port registering respectively with each chamber, and means to reverse the motion of the engine, all arranged as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES B. BENSON.

Witnesses:

S. EPHRAIM, ISAAC N. PUREY. 

